Sanchez, I'll pick up the glove on that one..
SCHLEICHER ASK-21...
From the Schleicher website :
http://www.alexander-schleicher.de/englisch/e_main.htm
I quote:
The versatility of the aircraft is further enhanced by its aerobatic capabilities. Maximum g-loads of +6.5 and -4.0 (for speeds up to 97kt) make the ASK 21 suitable for the entire training syllabus - including spin training.
back when I was young and stupid
Thank you.